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path: root/drivers/scsi/sr.c
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Diffstat (limited to 'drivers/scsi/sr.c')
-rw-r--r--drivers/scsi/sr.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index ba9c3e0387c..e148341079b 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -44,7 +44,6 @@
#include <linux/init.h>
#include <linux/blkdev.h>
#include <linux/mutex.h>
-#include <linux/smp_lock.h>
#include <linux/slab.h>
#include <asm/uaccess.h>
@@ -76,6 +75,7 @@ MODULE_ALIAS_SCSI_DEVICE(TYPE_WORM);
CDC_CD_R|CDC_CD_RW|CDC_DVD|CDC_DVD_R|CDC_DVD_RAM|CDC_GENERIC_PACKET| \
CDC_MRW|CDC_MRW_W|CDC_RAM)
+static DEFINE_MUTEX(sr_mutex);
static int sr_probe(struct device *);
static int sr_remove(struct device *);
static int sr_done(struct scsi_cmnd *);
@@ -470,24 +470,24 @@ static int sr_block_open(struct block_device *bdev, fmode_t mode)
struct scsi_cd *cd;
int ret = -ENXIO;
- lock_kernel();
+ mutex_lock(&sr_mutex);
cd = scsi_cd_get(bdev->bd_disk);
if (cd) {
ret = cdrom_open(&cd->cdi, bdev, mode);
if (ret)
scsi_cd_put(cd);
}
- unlock_kernel();
+ mutex_unlock(&sr_mutex);
return ret;
}
static int sr_block_release(struct gendisk *disk, fmode_t mode)
{
struct scsi_cd *cd = scsi_cd(disk);
- lock_kernel();
+ mutex_lock(&sr_mutex);
cdrom_release(&cd->cdi, mode);
scsi_cd_put(cd);
- unlock_kernel();
+ mutex_unlock(&sr_mutex);
return 0;
}
@@ -499,7 +499,7 @@ static int sr_block_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
void __user *argp = (void __user *)arg;
int ret;
- lock_kernel();
+ mutex_lock(&sr_mutex);
/*
* Send SCSI addressing ioctls directly to mid level, send other
@@ -529,7 +529,7 @@ static int sr_block_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
ret = scsi_ioctl(sdev, cmd, argp);
out:
- unlock_kernel();
+ mutex_unlock(&sr_mutex);
return ret;
}